The problem is not that Arabic is right to left. The problem is that Arabic is a cursive script with letters that connect. Whenever I have tried to view an ebook (other than PDF) in Arabic on my PB360 the letters are shown in their unconnected forms. This makes the text more difficult to read. If you make the text into a PDF, many readers, including the Pocketbook series and the Sony Readers, work. Reflow can be iffy, however, so be sure to make the text size sufficiently large.